diff --git a/src/course/nctu_ml2017/HW1/requirements.txt b/src/course/nctu_ml2017/HW1/requirements.txt
index bf9a723..2364158 100644
--- a/src/course/nctu_ml2017/HW1/requirements.txt
+++ b/src/course/nctu_ml2017/HW1/requirements.txt
@@ -1 +1 @@
-numpy==1.13.3
+numpy==1.22.0